5/32in Vac Fitting Push To Connect 1/8in NPT

The 5/32in Vac Fitting Push To Connect 1/8in NPT from Redhorse Performance is a precision vacuum line adapter engineered for modern engine management and emissions control systems. As a mechanic working with modified and stock vehicles alike, you'll recognize this fitting as essential infrastructure for fuel pressure regulators, boost controllers, catch cans, and custom vacuum distribution manifolds. Push-to-connect fittings eliminate the frustration of barbed connectors that leak or slip during vibration cycles, making them the go-to choice for serious builders and OEM-equivalent installations.

This adapter bridges two industry standards: the 5/32-inch push-to-connect port (common on fuel regulators and vacuum switches) and the 1/8-inch NPT male thread (standard on valve blocks, manifold ports, and aftermarket fuel rails). The push-to-connect side accepts standard silicone or nylon vacuum tubing without fittings, while the NPT end threads directly into ported vacuum sources or distribution blocks, creating a leak-proof, vibration-resistant seal. Redhorse Performance's design ensures minimal dead volume in the line path, critical for precise fuel pressure regulation and responsive boost control tuning on turbocharged and supercharged builds.

This fitting excels in forced-induction applications, EFI fuel system upgrades, and any project requiring clean, modular vacuum plumbing. Install it between your fuel pressure regulator and intake manifold vacuum source, or use it to transition from a bulky factory manifold to a compact custom block. At 0.045 lbs and compact 2.84 x 1.1 x 4.42-inch footprint, it fits tight engine bays and doesn't interfere with headers, valve covers, or intake runners. Whether you're running carbureted with electronic boost control or full EFI with progressive fuel mapping, this Redhorse fitting delivers the reliability that separates weekend projects from show-quality builds.